http://www.dailymail.co.uk/sciencetech/article-1279831/Up-away-Worlds-largest-airship-lifts-time.html
http://www.youtube.com/watch?v=LByr7ymgjiM
The bullet 580 was inflated, not flown!
E green people have very good image from their past history. The ship has long way to go but I am sure Egreen can bring this massive ship airborne in short time.